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Aug 13, 2020 at 11:42 comment added Burak Aside from Kant's objection on ontological arguments, I think the strongest criticism to Gödel's ontological proof is that his axioms imply modal collapse, that is, $\varphi \rightarrow \square \varphi$, which somehow undermines the point of modal logic. (That Gödel's axioms imply modal collapse was also verified in another work of Benzmüller and Paleo.)
Aug 12, 2020 at 22:09 history edited Timothy Chow CC BY-SA 4.0
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Aug 12, 2020 at 22:03 history answered Timothy Chow CC BY-SA 4.0